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JPL Small-Body Database Browser
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2127 Tanya (1971 KB1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2002127
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03206949432110629 4.0723e-08  
a 3.211241370938411 2.104e-08 au
q 3.1082584840294 1.3263e-07 au
i 13.0931645995431 4.4731e-06 deg
node 106.383373374011 2.0408e-05 deg
peri 186.352017981629 7.6724e-05 deg
M 85.16065390800757 7.3523e-05 deg
tp 2458103.284866002723
(2017-Dec-15.78486600)
0.00042953 TDB
period 2101.879682985721
5.75
2.0657e-05
5.656e-08
d
yr
n .1712752651420179 1.6833e-09 deg/d
Q 3.314224257847423 2.1715e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2753  
   data-arc span      24227 days (66.33 yr)  
   first obs. used      1953-04-14  
   last obs. used      2019-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40915  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:22:33  

Additional Information
 Earth MOID = 2.09156 au 
 Jupiter MOID = 1.84116 au 
 T_jup = 3.150 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.1   n/a MPO458850  
diameter diameter 37.736 km 0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.864 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.048   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2127 Tanya           Discovered 1971 May 29 by L. I. Chernykh at the Crimean Astrophysical Observatory.
Named in memory of Tanya Savicheva, a 12-year-old schoolgirl who perished during the 1941-1944 blockade of Leningrad. In her diary she made a record as her parents and other relatives died, one by one. Her last note was "... all the Savichev's have died, Tanya is left alone."
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5283Last Updated: 2007-10-23

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2038-Feb-21 01:37 < 00:01 Jupiter 1.94987432064262 1.94987385332884 1.94987478795672 4.34969681522243 4.24865453381469 2465475.567694782 0.807376651097017 82.0372791315242 17.0962547762092 -80.0916164362844 3818571.35855667 T 31 CATAB v2.0f-lin.ifort 2019-Sep-23 19:22:46 2019-Sep-23 19:22
2049-May-08 07:16 00:01 Jupiter 1.87469503066005 1.8746946377525 1.8746954235677 4.2754601944731 4.16844362011104 2469569.803013190 1.16664911569106 100.658353701215 17.1675425951273 -86.9453401502569 3804696.68591 T 31 CATAB v2.0f-lin.ifort 2019-Sep-23 19:22:46 2019-Sep-23 19:22
2060-Jul-16 19:19 00:02 Jupiter 1.87431821660738 1.8743177580146 1.87431867520026 4.05251309297409 3.93942166318768 2473657.305117577 1.60308303939428 87.0599938928845 21.7782028365642 86.2093684377351 3739722.58910366 T 31 CATAB v2.0f-lin.ifort 2019-Sep-23 19:22:46 2019-Sep-23 19:22
2071-Sep-07 04:35 00:02 Jupiter 1.93421953268029 1.93421886478432 1.93422020057714 3.70343193044901 3.58323587503997 2477726.690684113 2.13866763564763 136.306431618297 27.9682465918594 -80.9847506602861 4008915.21608761 T 31 CATAB v2.0f-lin.ifort 2019-Sep-23 19:22:46 2019-Sep-23 19:22

Alternate Designations
 1971 KB1 = 1953 GH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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